I read the discussion. There's no drama at all. Paragon did an unreviewable code dump with intent to maintain and they are warmly welcome in general. David laid out the path to review and probable acceptance https://lore.kernel.org/linux-fsdevel/20200815190642.GZ2026@... If there was any fuss it's because of the unreviewable nature of the patch but especially by kernel standards the discussion was cordial. In fact, aside from Nikolay's outburst by any standard it was a cordial discussion. (Someone should've gently told him this is no way to welcome newcomers especially newcomers carrying such a gift.)

Others noted it needs to pass the existing test suite and that it is close.